Hess's Law

Moderators: Chem_Mod, Chem_Admin

Post Reply
Maria Trujillo 1L
Posts: 47
Joined: Fri Apr 06, 2018 11:05 am

Hess's Law

Postby Maria Trujillo 1L » Sun Jan 27, 2019 9:40 pm

Will we need to calculate the kJN when working with Hess's law? Or will it always be given?
Top
mahika_nayak_3L
Posts: 60
Joined: Fri Sep 28, 2018 12:26 am

Re: Hess's Law

Postby mahika_nayak_3L » Sun Jan 27, 2019 10:48 pm

If you are given the enthalpies of 2 separate reactions, you may be asked to use these values to find the net enthalpy change of the overall reaction.
Top
Jason Ye 2I
Posts: 33
Joined: Fri Sep 28, 2018 12:22 am

Re: Hess's Law

Postby Jason Ye 2I » Mon Jan 28, 2019 3:50 pm

You can add the reaction equations together along with their values of enthalpy
Top
Angela Cong 3C
Posts: 69
Joined: Fri Sep 28, 2018 12:25 am

Re: Hess's Law

Postby Angela Cong 3C » Mon Jan 28, 2019 10:24 pm

you will be given the enthalpy with the initial rxns but just keep in mind you will also need to use that to find the final reaction enthalpy.
Top
Post Reply

Return to “Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)”

Who is online

Users browsing this forum: Alan Huang 1E and 5 guests